/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.sdk.io.gcp.bigquery;



import com.fasterxml.jackson.databind.ObjectMapper;

import com.fasterxml.jackson.databind.SerializationFeature;

import com.google.api.services.bigquery.model.TableDataInsertAllResponse;

import com.google.api.services.bigquery.model.TableReference;

import com.google.api.services.bigquery.model.TableRow;

import com.bff.gaia.unified.sdk.coders.AtomicCoder;

import com.bff.gaia.unified.sdk.coders.Coder;

import com.bff.gaia.unified.sdk.coders.StringUtf8Coder;

import com.bff.gaia.unified.sdk.values.TypeDescriptor;



import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;



/** A {@link Coder} that encodes BigQuery {@link BigQueryInsertError} objects. */

public class BigQueryInsertErrorCoder extends AtomicCoder<BigQueryInsertError> {



  public static BigQueryInsertErrorCoder of() {

    return INSTANCE;

  }



  @Override

  public void encode(BigQueryInsertError value, OutputStream outStream) throws IOException {

    String errorStrValue = MAPPER.writeValueAsString(value.getError());

    StringUtf8Coder.of().encode(errorStrValue, outStream);



    TableRowJsonCoder.of().encode(value.getRow(), outStream);



    StringUtf8Coder.of().encode(BigQueryHelpers.toTableSpec(value.getTable()), outStream);

  }



  @Override

  public BigQueryInsertError decode(InputStream inStream) throws IOException {

    TableDataInsertAllResponse.InsertErrors err =

        MAPPER.readValue(

            StringUtf8Coder.of().decode(inStream), TableDataInsertAllResponse.InsertErrors.class);

    TableRow row = TableRowJsonCoder.of().decode(inStream);

    TableReference ref = BigQueryHelpers.parseTableSpec(StringUtf8Coder.of().decode(inStream));

    return new BigQueryInsertError(row, err, ref);

  }



  @Override

  protected long getEncodedElementByteSize(BigQueryInsertError value) throws Exception {

    String errorStrValue = MAPPER.writeValueAsString(value.getError());

    String tableStrValue = MAPPER.writeValueAsString(value.getTable());

    return StringUtf8Coder.of().getEncodedElementByteSize(errorStrValue)

        + TableRowJsonCoder.of().getEncodedElementByteSize(value.getRow())

        + StringUtf8Coder.of().getEncodedElementByteSize(tableStrValue);

  }



  /////////////////////////////////////////////////////////////////////////////



  // FAIL_ON_EMPTY_BEANS is disabled in order to handle null values in BigQueryInsertError.

  // NON_FINAL default typing is enabled so that the java.lang.Long value on the errors index can be

  // properly deserialized as such and not as an Integer instead.

  private static final ObjectMapper MAPPER =

      new ObjectMapper()

          .disable(SerializationFeature.FAIL_ON_EMPTY_BEANS)

          .enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);



  private static final BigQueryInsertErrorCoder INSTANCE = new BigQueryInsertErrorCoder();

  private static final TypeDescriptor<BigQueryInsertError> TYPE_DESCRIPTOR =

      new TypeDescriptor<BigQueryInsertError>() {};



  /**

   * {@inheritDoc}

   *

   * @throws NonDeterministicException always. A {@link TableRow} can hold arbitrary {@link Object}

   *     instances, which makes the encoding non-deterministic.

   */

  @Override

  public void verifyDeterministic() throws NonDeterministicException {

    throw new NonDeterministicException(

        this, "TableRow can hold arbitrary instances, which may be non-deterministic.");

  }



  @Override

  public TypeDescriptor<BigQueryInsertError> getEncodedTypeDescriptor() {

    return TYPE_DESCRIPTOR;

  }

}